The dipping and coating step in the investment casting process is one of the most crucial in ensuring the quality, consistency and accuracy of finished castings. The sprue assembly is repeatedly dipped/coated with successive layers of ceramic and stucco to build up a solid shell that will be the mold for the castings. Traditionally, this can be done hand, requiring much experience and skill. Today, robotic dipping is rapidly growing as the preferred technology. Advanced robotics enhances the repeatability, efficiency and dependability of the shell/mold-making step in investment casting.